750Kbps a new stable rate?
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Plusnet Community
- :
- Forum
- :
- Help with my Plusnet services
- :
- Broadband
- :
- Re: 750Kbps a new stable rate?
750Kbps a new stable rate?
01-08-2008 6:14 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Peter.
Re: 750Kbps a new stable rate?
01-08-2008 6:36 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Have a read here
Re: 750Kbps a new stable rate?
01-08-2008 7:13 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Peter.
Re: 750Kbps a new stable rate?
01-08-2008 8:01 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Use of the expression Stable Rate causes confusion because of the term "Max Stable Rate" which is a misnomer. This page is a good read and explains the terminology quite well.
I was wondering why you were seeing such varations in your speed. Your sync speed should be more stable. Do you know how to access your router stats?
Regards,
Chris.
Re: 750Kbps a new stable rate?
02-08-2008 10:22 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I tend to put the variation down to weather it seems quickest in a dry spell. Is a .5Mb to 1.5Mb range unusually wide?
Router stats are
Path Mode Interleaved
Ds Rate (Kbps) 1152
Us Rate (Kbps) 448
DS Margin (dB) 11
US Margin (dB) 18
DS Line Attenuation (dB) 57
US Line Attenuation (dB) 31
CRC Rx Fast 0
CRC Tx Fast 0
CRC Rx Interleaved 832
CRC Tx Interleaved 21
Just reset the router and got this a modest boost but it may not last long -
Path Mode Interleaved
Ds Rate (Kbps) 1312
Us Rate (Kbps) 448
DS Margin (dB) 9
US Margin (dB) 17
DS Line Attenuation (dB) 57
US Line Attenuation (dB) 31
CRC Rx Fast 0
CRC Tx Fast 0
CRC Rx Interleaved 0
CRC Tx Interleaved 5
Peter.
Re: 750Kbps a new stable rate?
02-08-2008 10:53 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I'm guessing you leave your router on, if you need to re-sync the best time is usually daylight am. but this will also depend on local conditions.
From your re-boot it looks a though you have a target SNRM (the DS Margin) set by the exchange at 9dB. (The default is 6). This could be because in the past you have dropped your connection repeatedly in a very short time interval (some say >5 per hour) eg. power dips, disturbances from lightning etc. or it is just unstable at 6dB (too much noise).
I assume you've disconnected the bell wire if you have extension wiring or are using a filtered faceplate etc. to minimise the pickup of noise etc.
If you monitor those router stats, when you see an increase in the SNRM by at least a dB and it is stable for more than a few minutes, a re-boot may be worth while to help crank up your sync speed. (eg. it was 11 db just before your last reboot).
I would tend to avoid re-booting in the evening or after dark unless you are desperate, eg. having dropped to a very low sync, as things tend to be very much noisier then and less stable. HTH.
Regards,
Chris.
Re: 750Kbps a new stable rate?
03-08-2008 3:06 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I have very long extension leads as well and not disconnected the bell wire either. Good news though, simplified the extensions ie replaced two cables with a single longer run and had another improvement, unless its a fluke change of course but the DS Margin is down to 8 which looks good, these are the best I have seen for a while, getting close to 2Mb even.
Just waiting for the stable rate to catch up now, thanks Chris.
Peter.
Ds Rate (Kbps) 2016
Us Rate (Kbps) 448
DS Margin (dB) 8
US Margin (dB) 18
DS Line Attenuation (dB) 58
US Line Attenuation (dB) 31
Re: 750Kbps a new stable rate?
03-08-2008 5:24 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Quote from: Peter I have very long extension leads as well and not disconnected the bell wire either.
I have found that disconnecting the bell wire is single biggest improvement on attenuation/SNRM that can be achieved - unless you have the latest type of NTE5 type master sockets which contain a bell wire filter.
Re: 750Kbps a new stable rate?
03-08-2008 6:20 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
In my experience filtering at the master gets you a noticable sync rate improvement, though you might get similar results with the bell wire trick.
Incidentally how many extensions do you have?
Re: 750Kbps a new stable rate?
03-08-2008 6:40 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
If you get significantly better speed or noise margins, it might be with trying:
- better cable from router to NTE5, or
- locating your router near the NTE5 and using wireless, or
- ditto but using Cat 5 cable from router to PC
Re: 750Kbps a new stable rate?
04-08-2008 8:56 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Filtered faceplates are most beneficial if you have several phone extensions where you will never use your router and you can locate you router at the NTE5, otherwise if you want to plug your router in at an extension, make sure the wiring is twisted pair (Cat5e ideally) standard. Also, if you need longish extension leads, better to have a long extension lead from router to network card (which is a Cat5e/6 cable), than a long lead from socket to modem/router.
Your (DS) attenuation is quite high because you are a long way from the exchange
and unless you have terrible internal wiring (bad joints/poor wiring) you won't be able to improve on it in any significant way. The baseline is what you can get from you Master Linebox Test socket (ie. with everything else disconnected).
Noise margin figures can be tricky to interpret and just because the figure is lower than it was before doesn't automatically mean any improvement, it might mean there is more noise at that time.
Hope that all helps,
Regards,
Chris.
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Plusnet Community
- :
- Forum
- :
- Help with my Plusnet services
- :
- Broadband
- :
- Re: 750Kbps a new stable rate?